O
- O2 Micro
- 4800 Great America Parkway, Santa Clara, CA - 408/987-5920 - FAX 408/987-5929
- Oak Technology
- 139 Kifer Court, Sunnyvale, CA 94086 - 408/737-0888 - FAX 408/737-3838
- Oasis Semiconductor, Inc.
- 128 Wheeler Road, Burlington, MA 01803 - 781/272-3325 - FAX 781/272-3192
- Oasis SiliconSystems AG
- Haid-und-Neu Strasse 7, 76131 Karlsruhe, Germany - +49 (0)721 9658 551 - FAX +49 (0)721 9658 567
- Octasic Inc.
- 4101 Molson Street, Suite 300, Montreal, Quebec, Canada H1Y 3L1 - 514/282-8858 - FAX 514/282-7672
- Odeum Microsystems, Inc.
- 3103 North First Street, San Jose, CA 95134 - 408/232-8400 - FAX 408/232-8131
- OKI Semiconductor
- 785 North Mary Avenue, Sunnyvale, CA 94086 - 408/720-1900 - FAX 408/720-1918
- Omnirel
- 205 Crawford Street, Leominster, MA 01453 - 978/534-5776 - FAX 978/537-4246
- OmniVision Technologies, Inc.
- 930 Thompson Place, Sunnyvale, CA 94085 - 408/733-3030 - FAX 408/733-3061
- ON Semiconductor
- 5005 East McDowell, Phoenix, AZ 85008 - 602/244-7098
- Onex Communications Corporation
- 34 Crosby Drive, Bedford, MA 01730 - 781/271-9999 - FAX 781/271-9998
- Oplus Technologies Ltd.
Shaar Yokneam, Tavor Building 2, PO Box 563, Yokneam 20692, Israel - +972-4-959-2288 - FAX +972-4-959-2289
- Opnext Inc.

- 1 Christopher Way, Eatontown, NJ 07724 - 732/544-3400 - FAX 732/544-3540
- Optek Technology, Inc.
- 1215 West Crosby Road, Carrollton, TX 75006 - 972/323-2200 - FAX 972/323-7009
- Optenia, Inc.
- 350 Legget Drive, Kanata, Ontario, Canada K2K 2W7 - 613/592-7800 - FAX 613/592-7810
- Optical Micro-Machines, Inc.
- 9410 Carroll Park drive, San Diego, CA 92121 - 858/362-2800 - FAX 858/362-2999
- OPTi, Inc.
- 888 Tasman Drive, Milpitas, CA 95035 - 408/486-8000 - FAX 408/486-8001
- Opto Diode Corporation
- 750 Mitchell Road, Newbury Park, CA 91320 - 805/499-0335 - FAX 805/499-0108
- OPTOLAB Microsystems GmbH
- Haarbergstrasse 61, 99097 Erfurt, Germany - +49-361-422 906-0 - FAX +49-361-422 906-50
- Orbit Semiconductor - see Flextronics Semiconductor
- Oren Semiconductor, Inc.
- 2620 Augustine Drive, Suite 238, Santa Clara, CA 95054 - 408/330-0301 - FAX 408/330-0305
- Orient Semiconductor Electronics,
Ltd.
- 12-2 Nei Huan South Road, N.E.P.Z. Kaohsiung 81120, Taiwan, R.O.C. - +886-7-3613131
- FAX +886-7-363-2319
- Orologic, Inc.
- 1000-G Perimeter Park Drive, Morrisville, NC 27560 - 919/465-2100 - FAX 919/465-2171
- Ortel Corporation - being acquired by Lucent
- 2015 West Chestnut Street, Alahambra, CA 91803 - 626/281-3636 - FAX 626/458-9243
- Osram Opto Semiconductors GmbH

- Wernerwerkstrasse 2, 93049 Regensburg, Germany - +49 941 850-5 - FAX +49 941 850-1002
- Oxford Micro Devices,
Inc. - formerly Oxford Computer
- 731 Main Street, Building 2, Monroe, CT 06468 - 203/445-0562 - FAX 203/445-0564
- Oxford Semiconductor
- 68 Milton Park, Abingdon, Oxfordshire OX14 4RK United Kingdom - +44 (0)1235 861461 - FAX +44 (0)1235 821141